Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11

+

=

Khaki Box   CadetBlue Box   YellowGreen Box   DodgerBlue Box   DarkSlateBlue Box   Chartreuse Box   SteelBlue Box   DarkOliveGreen Box   DarkOrange Box   MediumSeaGreen Box  plus     DeepSkyBlue Box  equals     Khaki Box   CadetBlue Box   YellowGreen Box   DodgerBlue Box   DarkSlateBlue Box   Chartreuse Box   SteelBlue Box   DarkOliveGreen Box   DarkOrange Box   MediumSeaGreen Box   DeepSkyBlue Box

We start with ten boxes, add one box, and now have eleven boxes.

Here's another example:

10
+
2
=
12

+

=

RoyalBlue Box   DarkMagenta Box   Sienna Box   SlateBlue Box   DarkGoldenrod Box   BurlyWood Box   DarkGreen Box   Olive Box   Magenta Box   DarkSeaGreen Box  plus     DarkCyan Box   Coral Box  equals     RoyalBlue Box   DarkMagenta Box   Sienna Box   SlateBlue Box   DarkGoldenrod Box   BurlyWood Box   DarkGreen Box   Olive Box   Magenta Box   DarkSeaGreen Box   DarkCyan Box   Coral Box

We start with ten boxes, add two boxes, and now have twelve boxes.

Try this problem.

10
+
3
=

+

=

MediumSlateBlue Box   CornflowerBlue Box   MediumBlue Box   MediumOrchid Box   Indigo Box   MediumSpringGreen Box   DeepPink Box   SaddleBrown Box   Purple Box   Tan Box  plus     Khaki Box   CadetBlue Box   YellowGreen Box  equals     MediumSlateBlue Box   CornflowerBlue Box   MediumBlue Box   MediumOrchid Box   Indigo Box   MediumSpringGreen Box   DeepPink Box   SaddleBrown Box   Purple Box   Tan Box   Khaki Box   CadetBlue Box   YellowGreen Box

We start with ten boxes, add three boxes, and now have thirteen boxes.

In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22

The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.